#RELIABLE SERIAL COMMUNICATION PROTOCOL HOW TO#
#RELIABLE SERIAL COMMUNICATION PROTOCOL MAC OS#
#RELIABLE SERIAL COMMUNICATION PROTOCOL INSTALL#
#RELIABLE SERIAL COMMUNICATION PROTOCOL SOFTWARE#

It supports Windows platform, allows you to easily bridge serial ports using TCP/IP protocol and requires no additional software or hardware components. Variable to store if sending data was successfulД¬reate a structure that stores humidity, temperature and pressure readings.Free Com Ports Redirector is a freeware version of HHD Software Serial to IP redirection utility named Network Serial Ports. The following variable will store a success message if the readings are delivered successfully to the other board. These readings will be sent to the other board: // Define variables to store BME280 readings to be sentД¬reate variables to store the sensor readings coming from the other board: // Define variables to store incoming readings Uint8_t broadcastAddress = Д¬reate variables to store temperature, humidity and pressure readings from the BME280 sensor. REPLACE WITH THE MAC Address of your receiver Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)ДЄdafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1) #define SCREEN_HEIGHT 64 // OLED display height, in pixels #define SCREEN_WIDTH 128 // OLED display width, in pixels The above copyright notice and this permission notice shall be included in allД¬opies or substantial portions of the Software. Of this software and associated documentation files. Permission is hereby granted, free of charge, to any person obtaining a copy Before uploading the code, you need to enter the MAC address of the other board (the board youвЂ™re sending data to). Upload the following code to each of your boards. Learn more about interfacing multiple I2C peripherals with the ESP32. You can also follow the next table to wire the OLED display to the ESP32. You can use the following table as a reference when wiring the BME280 sensor. Complete Instructions to Get and Change ESP MAC Address: ДЄfter uploading the code, press the RST/EN button, and the MAC address should be displayed on the Serial Monitor.

Upload the following code to each of your boards to get their MAC address.

#RELIABLE SERIAL COMMUNICATION PROTOCOL HOW TO#

Each board has a unique MAC address (learn how to Get and Change the ESP32 MAC Address). To send messages between each board, we need to know their MAC address. You can use the preceding links or go directly to /tools to find all the parts for your projects at the best price!

2x 0.96 inch OLED displays ( OLED Complete Guide).

2x BME280 sensors ( BME280 Complete Guide).

2x ESP32 development boards (read Best ESP32 boards).

BME280 libraries ( ESP32 BME280 Guide): Adafruit_BME280 libraryВ and Adafruit Unified Sensor libraryДЇor this tutorial you need the following parts:.

OLED libraries ( ESP32 OLED Guide): Adafruit_SSD1306 library and Adafruit_GFX library.

Go to SketchВ > Include Library> Manage LibrariesВ and search for the library name. These libraries can be installed through the Arduino Library Manager.

#RELIABLE SERIAL COMMUNICATION PROTOCOL INSTALL#

Install the following libraries in your Arduino IDE.

#RELIABLE SERIAL COMMUNICATION PROTOCOL MAC OS#

Installing the ESP32 Board in Arduino IDE (Windows, Mac OS X, and Linux).

WeвЂ™ll program the ESP32 using Arduino IDE, so before proceeding with this tutorial you should have the ESP32 add-on installed in your Arduino IDE. PrerequisitesД«efore proceeding with this project, make sure you check the following prerequisites. In this example, weвЂ™re using a two-way communication between two boards, but you can add more boards to this setup, and having all boards communicating with each other.

Each board needs to know the other board MAC address in order to send the message.

After sending the readings, the board displays on the OLED if the message was successfully delivered.

When a board receives the readings, it displays them on the OLED display.

Each board sends its readings to the other board via ESP-NOW.

Each board gets temperature, humidity and pressure readings from their corresponding sensors.

Each board is connected to an OLED display and a BME280 sensor

In this project weвЂ™ll have two ESP32 boards.

Reliable serial communication protocol